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Solution structure of Ca2+-CIB1 in complex with the cytoplasmic domain of the integrin aIIb subunit
Authors
Huang, H., Vogel, H.J.
Assembly
CIB1
Entity
1. CIB1 (polymer, Thiol state: all free), 214 monomers, 24469.92 Da Detail

MGHHHHHHHH HHSSGHIDDD DKHMGGSGSR LSKELLAEYQ DLTFLTKQEI LLAHRRFCEL LPQEQRSVES SLRAQVPFEQ ILSLPELKAN PFKERICRVF STSPAKDSLS FEDFLDLLSV FSDTATPDIK SHYAFRIFDF DDDGTLNRED LSRLVNCLTG EGEDTRLSAS EMKQLIDNIL EESDIDRDGT INLSEFQHVI SRSPDFASSF KIVL


2. CA (non-polymer, Thiol state: not present), 40.078 × 2 Da
Total weight
24550.076 Da
Max. entity weight
24469.92 Da
Source organism
Homo sapiens
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 86.0 %, Completeness: 45.2 %, Completeness (bb): 70.2 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All45.2 % (1124 of 2488)25.7 % (332 of 1292)64.1 % (626 of 976)75.5 % (166 of 220)
Backbone70.2 % (891 of 1270)44.0 % (189 of 430)84.7 % (536 of 633)80.2 % (166 of 207)
Sidechain28.8 % (410 of 1423)16.6 % (143 of 862)48.7 % (267 of 548) 0.0 % (0 of 13)
Aromatic 8.8 % (19 of 216)10.2 % (11 of 108) 7.4 % (8 of 108)
Methyl70.4 % (152 of 216)67.6 % (73 of 108)73.1 % (79 of 108)

1. CIB1

MGHHHHHHHH HHSSGHIDDD DKHMGGSGSR LSKELLAEYQ DLTFLTKQEI LLAHRRFCEL LPQEQRSVES SLRAQVPFEQ ILSLPELKAN PFKERICRVF STSPAKDSLS FEDFLDLLSV FSDTATPDIK SHYAFRIFDF DDDGTLNRED LSRLVNCLTG EGEDTRLSAS EMKQLIDNIL EESDIDRDGT INLSEFQHVI SRSPDFASSF KIVL

Sample #1

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 310 K, pH 7.5 (±0.1), Details aIIb peptide sequence :Ac-LVLAMWKVGFFKRNRPPLEEDDEEGQ-OH


#NameIsotope labelingTypeConcentration
1CIB1[U-13C; U-15N; U-2H]0.5 mM
2DTT[U-2H]5 mM
3CALCIUM IONnatural abundance2 mM
4sodium chloridenatural abundance100 mM
5HEPESnatural abundance50 mM
6aIIb peptidenatural abundance0.6 mM
7H2Onatural abundance90 %
8D2Onatural abundance10 %
Sample #2

Solvent system 100% D2O, Pressure 1 atm, Temperature 310 K, pH 7.5 (±0.1), Details aIIb peptide sequence :Ac-LVLAMWKVGFFKRNRPPLEEDDEEGQ-OH


#NameIsotope labelingTypeConcentration
9CIB1[U-13C; U-2H], I/L/V methyl [1H,13C]0.5 mM
10DTT[U-2H]5 mM
11CALCIUM IONnatural abundance2 mM
12sodium chloridenatural abundance100 mM
13HEPESnatural abundance50 mM
14aIIb peptidenatural abundance0.6 mM
15D2Onatural abundance100 %
Sample #3

Solvent system 100% D2O, Pressure 1 atm, Temperature 310 K, pH 7.5 (±0.1), Details aIIb peptide sequence :Ac-LVLAMWKVGFFKRNRPPLEEDDEEGQ-OH


#NameIsotope labelingTypeConcentration
16CIB1[U-10% 13C]0.5 mM
17DTT[U-2H]5 mM
18CALCIUM IONnatural abundance2 mM
19sodium chloridenatural abundance100 mM
20HEPESnatural abundance50 mM
21aIIb peptidenatural abundance0.6 mM
22D2Onatural abundance100 %
Sample #4

Solvent system 100% D2O, Pressure 1 atm, Temperature 310 K, pH 7.5 (±0.1), Details aIIb peptide sequence :Ac-LVLAMWKVGFFKRNRPPLEEDDEEGQ-OH


#NameIsotope labelingTypeConcentration
23CIB1[U-2H], I/L/V methyl [1H,13C]0.5 mM
24DTT[U-2H]5 mM
25CALCIUM IONnatural abundance2 mM
26sodium chloridenatural abundance100 mM
27HEPESnatural abundance50 mM
28aIIb peptidenatural abundance0.6 mM
29D2Onatural abundance100 %
Sample #5

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 310 K, pH 7.5 (±0.1), Details aIIb peptide sequence :Ac-LVLAMWKVGFFKRNRPPLEEDDEEGQ-OH


#NameIsotope labelingTypeConcentration
30CIB1[U-13C; U-15N; U-2H]0.5 mM
31DTT[U-2H]5 mM
32CALCIUM IONnatural abundance2 mM
33sodium chloridenatural abundance100 mM
34HEPESnatural abundance50 mM
35aIIb peptidenatural abundance0.6 mM
36pf1 phagenatural abundance14 mg/mL
37H2Onatural abundance90 %
38D2Onatural abundance10 %
Sample #6

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 310 K, pH 7.5 (±0.1), Details aIIb peptide sequence :Ac-LVLAMWKVGFFKRNRPPLEEDDEEGQ-OH


#NameIsotope labelingTypeConcentration
39CIB1[U-13C; U-15N; U-2H]0.5 mM
40DTT[U-2H]5 mM
41CALCIUM IONnatural abundance2 mM
42sodium chloridenatural abundance100 mM
43HEPESnatural abundance50 mM
44aIIb peptidenatural abundance0.6 mM
45C12E5/glycerol (0.96/1)natural abundance5 %
46H2Onatural abundance90 %
47D2Onatural abundance10 %

LACS Plot; CA
Referencing offset: 0.51 ppm, Outliers: 4 Detail
LACS Plot; CB
Referencing offset: 0.51 ppm, Outliers: 4 Detail
LACS Plot; CO
Referencing offset: -0.2 ppm, Outliers: 2 Detail
Protein Blocks Logo
Calculated from 10 models in PDB: 2LM5, Strand ID: A Detail


Release date
2012-01-31
Citation
Structural basis for the activation of platelet integrin αIIbβ3 by calcium- and integrin-binding protein 1
Huang, H., Vogel, H.J.
J. Am. Chem. Soc. (2012), 134, 3864-3872, PubMed 22283712 , DOI 10.1021/ja2111306 ,
Related entities 1. CIB1, : 1 : 2 : 8 : 136 entities Detail
Interaction partners 1. CIB1, : 18 interactors Detail
Experiments performed 9 experiments Detail
NMR combined restraints 7 contents Detail
Keywords aIIb, alphaIIb, calcium and integrin binding protein, CIB1, integrin, NMR